biden have had their most private financial information hacked and then posted. here's abc justice correspondent pierre thomas. >> reporter: kim kardashian has made a living by putting her entire life in public view. for someone so exposed a website may have given too much information, specifically her credit report. she declined comment. she was one of more than a dozen celebrities and government officials targeted in one of the highest profile privacy breaches in history. personal financial details on display for all the world to see. from jay-z and britney spears to first lady michelle obama and hillary clinton. they're all apparent victims of what is known as a doxing attack. it involves gathering private documents and posting them on the internet. even the most protected people on the internet allegedly hit. vice president biden, attorney eric holder, even fbi director robert mueller. in an exclusive interview with abc's george ste, he wouldn't s whether it was authentic but confirm authorities are trying to figure out what happened. >> we should not be surp